US 12,455,873 B1
Data anomaly detection system
Shaodong Sheng, Shanghai (CN); Yi Wang, Shanghai (CN); and Geng Zhu, Shanghai (CN)
Assigned to EBAY INC., San Jose, CA (US)
Filed by eBay Inc., San Jose, CA (US)
Filed on Apr. 25, 2024, as Appl. No. 18/646,101.
Int. Cl. G06F 16/00 (2019.01); G06F 16/23 (2019.01); G06F 16/25 (2019.01)
CPC G06F 16/2365 (2019.01) [G06F 16/258 (2019.01)] 20 Claims
OG exemplary drawing
 
1. A method for improving computer detection of data anomalies that are not detectable using a sigma rule applied to untransformed data, the method comprising:
accessing, by a data analysis system of a server, data generated on a data platform, the data comprising the untransformed data;
based on the accessed data, generating, by a coordinate component of the data analysis system, an optimal coordinate system without reducing a number of dimensions of the accessed data using principal component analysis (PCA);
transforming, by the coordinate component, the accessed data onto the optimal coordinate system without reducing the number of dimensions of the accessed data resulting in a new set of coordinates for the transformed data;
applying the sigma rule to the transformed data on the optimal coordinate system to detect one or more data anomalies, and
generating and transmitting, by the server, a notification of the one or more data anomalies.